a-(a+3)=10+(a-1)

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Solution for a-(a+3)=10+(a-1) equation:


Simplifying
a + -1(a + 3) = 10 + (a + -1)

Reorder the terms:
a + -1(3 + a) = 10 + (a + -1)
a + (3 * -1 + a * -1) = 10 + (a + -1)
a + (-3 + -1a) = 10 + (a + -1)

Reorder the terms:
-3 + a + -1a = 10 + (a + -1)

Combine like terms: a + -1a = 0
-3 + 0 = 10 + (a + -1)
-3 = 10 + (a + -1)

Reorder the terms:
-3 = 10 + (-1 + a)

Remove parenthesis around (-1 + a)
-3 = 10 + -1 + a

Combine like terms: 10 + -1 = 9
-3 = 9 + a

Solving
-3 = 9 + a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-1a' to each side of the equation.
-3 + -1a = 9 + a + -1a

Combine like terms: a + -1a = 0
-3 + -1a = 9 + 0
-3 + -1a = 9

Add '3' to each side of the equation.
-3 + 3 + -1a = 9 + 3

Combine like terms: -3 + 3 = 0
0 + -1a = 9 + 3
-1a = 9 + 3

Combine like terms: 9 + 3 = 12
-1a = 12

Divide each side by '-1'.
a = -12

Simplifying
a = -12

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